Smoke alarm



FIG. 1 is a perspective view of the smoke detector showing my new design;

FIG. 2 is a right side elevation view thereof;

FIG. 3 is a left side elevation view thereof;

FIG. 4 is a front elevation view thereof;

FIG. 5 is a rear elevation view thereof; and,

FIG. 6 is a plan view thereof.

The bottom of the smoke detector is substantially unornamented. No claim is made to the bottom of the smoke detector. 

The ornamental design for a smoke alarm, as shown and described. 